A wealthy Briton had sex with his wife before strangling and murdering her in a frenzied knife attack at their £450,000 Costa del Sol villa, Spanish prosecutors say.
Retired company boss Geoffrey Elton then shut down the power, kicked his 15-year-old son out of the house and got rid of their phone and mobiles to slow the arrival of help, according to officials.
The brutal slaying of mum-of-two Gloria Tornay was laid bare today as Elton, who divided his time between the Costa resort of Estepona and a Florida residence, was charged with her murder.
Spanish prosecutors want the 56-year-old jailed for 14 years if he is found guilty and ordered to pay her children £180,000 in compensation.
Geoffrey Elton, 56, is hauled into a custody by Spanish police in the Costa Del Sol
Elton with his 58-year-old Spanish-born wife Gloria
In an indictment submitted to a judge ahead of trial, they state: 'Geoffrey Miles Elton was in the home he shared with his wife and their 15-year-old son in Estepona and with the obvious intention of ending her life after having sex with her in their bedroom, suddenly and totally unexpectedly began to hit her in the face as he put his hand over her mouth to suffocate her.
'He then proceeded to strangle her and when he wasn't able to achieve his objective, used a 5.7 inch long kitchen knife to stab her 11 times.'
One of the stab wounds Gloria, 58, suffered was to her back as she tried to flee and she died after going into 'hypovolemic shock' from massive blood loss
Alleging Elton took advantage of the fact his alleged victim had consumed alcohol as well as morphine and methadone before the attack that ended her life, the prosecutors added: 'After what happened, the accused expelled their son from the property, threw his mobile phone, that of his wife's and the home phone outside, and shut down power to the house.
'This was done with the aim of ensuring the success of his actions by making it impossible for the emergency services to arrive in time and stop anyone entering the property to help the victim.'
Elton, who ran a successful satellite installation firm before retiring aged just 50 to relax in his four-bed detached home, has been held on remand in prison since Spanish-born Gloria's murder on March 9 last year.
He had been spending time with his UK-based brother before the horror killing after his younger sibling jetted to Spain for a holiday.
His brother, unaware of the horrific incident that was about to unfold in his relative's sunshine villa, posted happy family pictures of them relaxing at a Costa del Sol beach bar days before the stabbing and wrote: 'Lovely lunch with my brother and Co. in the sunshine.'
Scenes-of-crimes officers found a trail of blood throughout the house in a quiet residential street in hills overlooking the Mediterranean and were said to have concluded the suspected killer had chased his victim through the property before cornering her and ending her life.
Elton spent his time between this villa on the Costa del Sol and a home in Florida
Reports at the time said Gloria, the third of eight children from a village near Ronda in southern Spain, had been planning to leave her husband.
An acquaintance described Elton as 'increasingly paranoid' in the run-up to the murder, saying he had become more and more reclusive and started worrying his family were spying on him.
Prosecutors will tell his murder trial they believe he suffered from a rare mental illness which distorts his appreciation of reality.
But a well-placed source said: 'Although they accept he had a disorder which led to him suffering delusions, they don't feel it exempts him from criminal responsibility.'
A date for the Briton's trial has yet to be set.
Lawyers acting for Gloria's family, who have launched a parallel criminal prosecution to the state one, are understood to be demanding the same 14 year prison sentence.
Murder can now be punished by life imprisonment in certain circumstances in Spain following a 2015 legal reform.
The lower 14-year prison demand is linked partly to the fact prosecutors accept Elton has a mental disorder, described in the indictment as an 'extenuating circumstance.'
